\begin{tikzpicture}
    \pgfmathsetmacro{\a}{3.5}
    \tkzDefPoints{0/0/B,  \a/0/C, 0/\a/A, \a/\a/D}
    \tkzDefPointOnLine[pos=0.3](A,B)  \tkzGetPoint{A'}
    \tkzDefPointOnLine[pos=0.3](B,C)  \tkzGetPoint{B'}
    \tkzDefPointOnLine[pos=0.3](C,D)  \tkzGetPoint{C'}
    \tkzDefPointOnLine[pos=0.3](D,A)  \tkzGetPoint{D'}
    \tkzDrawPolygon(A,B,C,D)
    \tkzDrawPolygon(A',B',C',D')
    \extkzLabelAngel[0.4](D',A',A){$1$}
    \extkzLabelAngel[0.8](A,D',A'){$2$}
    \extkzLabelAngel[0.8](B,A',B'){$3$}
    \tkzLabelPoints[left](A,B,A')
    \tkzLabelPoints[right](C,D,C')
    \tkzLabelPoints[above](D')
    \tkzLabelPoints[below](B')
\end{tikzpicture}

